All Outputs (36)

External surface phenomena in dealumination and desilication of large single crystals of ZSM-5 zeolite synthesized from a sustainable source (2019)
Journal Article
Zholobenko, V., de Melo, J., Peron, D., Khodakov, A., Capron, M., Nuns, N., …Ordomsky, V. (2019). External surface phenomena in dealumination and desilication of large single crystals of ZSM-5 zeolite synthesized from a sustainable source. Microporous and Mesoporous Materials, 57-64. https://doi.org/10.1016/j.micromeso.2019.05.033

Zeolite dealumination and desilication are common methods, which improve accessibility of the active sites located inside the zeolite crystallites and tune the zeolite acidity. The exact mechanism of these post-synthesis zeolite treatments remains un... Read More about External surface phenomena in dealumination and desilication of large single crystals of ZSM-5 zeolite synthesized from a sustainable source.

The influence of precursors on the induction period and transition-regime of dimethyl ether conversion to hydrocarbons over ZSM-5 catalysts (2019)
Journal Article
Omojola, T., Lukyanov, D., Cherkasov, N., Zholobenko, V., & van Veen, A. (2019). The influence of precursors on the induction period and transition-regime of dimethyl ether conversion to hydrocarbons over ZSM-5 catalysts. Industrial & Engineering Chemistry Research, 16479-16488. https://doi.org/10.1021/acs.iecr.9b03344

ZSM-5 catalysts were subjected to step response cycles of dimethyl ether (DME) at 300 °C in a temporal analysis of products (TAP) reactor. Propylene is the major olefin and displays an S-shaped profile. A 44-min induction period occurs before primary... Read More about The influence of precursors on the induction period and transition-regime of dimethyl ether conversion to hydrocarbons over ZSM-5 catalysts.

Synthesis of Nanostructured Catalysts by Surfactant-Templating of Large-Pore Zeolites (2019)
Journal Article
Zholobenko, V., Mordvinova, N., Lebedev, O., Vicente, A., Haslam, J., Al-Ani, A., & fernandez, C. (2019). Synthesis of Nanostructured Catalysts by Surfactant-Templating of Large-Pore Zeolites. RSC advances, 2029-2039. https://doi.org/10.1039/C9NA00004F

Zeolites and related crystalline molecular sieves are utilised in a wide range of reactions and processes due to their regular microporous structure, strong acidity, shape selectivity and ion-exchange properties. However, their practical applications... Read More about Synthesis of Nanostructured Catalysts by Surfactant-Templating of Large-Pore Zeolites.

Correction: Synthesis of nanostructured catalysts by surfactant-templating of large-pore zeolites (2019)
Journal Article
Al-Ani, A., Haslam, J. J. C., Mordvinova, N. E., Lebedev, O. I., Vicente, A., Fernandez, C., & Zholobenko, V. (in press). Correction: Synthesis of nanostructured catalysts by surfactant-templating of large-pore zeolites. Nanoscale Advances, 1(5), 2041-2041. https://doi.org/10.1039/c9na90019e

Correction for ‘Synthesis of nanostructured catalysts by surfactant-templating of large-pore zeolites’ by Aqeel Al-Ani et al., Nanoscale Adv., 2019, DOI: 10.1039/c9na00004f.

Catalytic performance of microporous materials for the production of renewable fuels (2019)
Journal Article
Al-Ani, A., Drijfhout, F., Crickett, S., & Zholobenko, V. (2019). Catalytic performance of microporous materials for the production of renewable fuels. Journal of Porous Materials, 26, 69-76. https://doi.org/10.1007/s10934-018-0610-7

ETS-10, zeolite A and sepiolite based nano-structured materials were prepared and modified with potassium containing compounds using ion-exchange or impregnation and evaluated as basic catalysts for transesterification of vegetable oils using microwa... Read More about Catalytic performance of microporous materials for the production of renewable fuels.

Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts (2018)
Journal Article
Smith, B., Li, L., Perera-Solis, D., Gildea, L., Zholobenko, V., Dyer, P., & Greenwell, H. (2018). Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts. Inorganics, https://doi.org/10.3390/inorganics6040121

A sustainable route to ketones is described where stearone is produced via ketonic decarboxylation of stearic acid mediated by solid base catalysts in yields of up to 97%, at 250 °C. A range of Mg/Al layered double hydroxide (LDH) and mixed metal... Read More about Ketone Formation via Decarboxylation Reactions of Fatty Acids Using Solid Hydroxide/Oxide Catalysts.

Structural features and stability of Spanish sepiolite as a potential catalyst (2018)
Journal Article
Al-Ani, . A., Gertisser, R., & Zholobenko, V. (2018). Structural features and stability of Spanish sepiolite as a potential catalyst. Applied Clay Science, 297 -304. https://doi.org/10.1016/j.clay.2018.06.021

Abstract Sepiolite-based catalysts loaded with potassium hydroxide were prepared via the wet impregnation and ion-exchange methods and evaluated as catalysts in base-assisted reactions, such as transesterification of renewable oils. The structural fe... Read More about Structural features and stability of Spanish sepiolite as a potential catalyst.

Direct Production of Iso-Paraffins from Syngas over Hierarchical Cobalt-ZSM-5 Nanocomposites Synthetized using Carbon Nanotubes as Sacrificial Templates (2018)
Journal Article
Khodakov, A., Marcilio, N., Ordomsky, V., Zholobenko, V., Baaziz, W., Flores, C., & Batalha, N. (2018). Direct Production of Iso-Paraffins from Syngas over Hierarchical Cobalt-ZSM-5 Nanocomposites Synthetized using Carbon Nanotubes as Sacrificial Templates. ChemCatChem, 2291-2299. https://doi.org/10.1002/cctc.201701848

his paper focuses on the effect of synthesis conditions on the structure of cobalt-ZSM-5 zeolites and the localization, dispersion, and reducibility of cobalt species and their catalytic performance in Fischer–Tropsch synthesis. The zeolite catalysts... Read More about Direct Production of Iso-Paraffins from Syngas over Hierarchical Cobalt-ZSM-5 Nanocomposites Synthetized using Carbon Nanotubes as Sacrificial Templates.

Nanostructured Zeolites: The Introduction of Intracrystalline Mesoporosity in Basic Faujasite-Type Catalysts (2018)
Journal Article
Al-Ani, A., Darton, R. J., Sneddon, S., & Zholobenko, V. (2018). Nanostructured Zeolites: The Introduction of Intracrystalline Mesoporosity in Basic Faujasite-Type Catalysts. ACS Applied Nano Material, 1(1), 310-318. https://doi.org/10.1021/acsanm.7b00169

A combination of postsynthesis modifications and ion exchange aiming to obtain basic cation-rich hierarchical zeolites X and Y was utilized in this work for the preparation of catalysts for biofuel production from vegetable oils. The secondary mesopo... Read More about Nanostructured Zeolites: The Introduction of Intracrystalline Mesoporosity in Basic Faujasite-Type Catalysts.

Transalkylation of Toluene with 1,2,4-Trimethylbenzene over Large Pore Zeolites (2017)
Journal Article
Chansai, S., Garforth, A., Zholobenko, V., Almulla, F., & Hill, P. (2017). Transalkylation of Toluene with 1,2,4-Trimethylbenzene over Large Pore Zeolites. Industrial & Engineering Chemistry Research, 9799 -9808. https://doi.org/10.1021/acs.iecr.7b01388

Using industrially relevant operating parameters, the transalkylation of 1,2,4-trimethylbenzene (TMB) with toluene was studied. The effect of acidity and structure, increased reaction pressure, and very low levels of Pt impregnation have been investi... Read More about Transalkylation of Toluene with 1,2,4-Trimethylbenzene over Large Pore Zeolites.

Transalkylation of Toluene with 1, 2, 4-Trimethylbenzene over (2017)
Journal Article
Almulla, F., Zholobenko, V., Waters, J. . P., & Garforth, A. (2017). Transalkylation of Toluene with 1, 2, 4-Trimethylbenzene over. Chemical Engineering Transactions, 57, https://doi.org/10.3303/CET1757158

The catalytic activity, selectivity to xylenes and time-on-stream stability were investigated in the transalkylation of toluene with 1, 2, 4-trimethylbenzene. The catalytic tests were carried out in a fixed bed reactor over zeolite Beta (Si/Al = 12.5... Read More about Transalkylation of Toluene with 1, 2, 4-Trimethylbenzene over.

Selective Toluene Disproportionation to Produce Para-Xylene over Modified ZSM-5 (2017)
Journal Article
Zholobenko, V. (2017). Selective Toluene Disproportionation to Produce Para-Xylene over Modified ZSM-5. Chemical Engineering Transactions, 57, https://doi.org/10.3303/CET1757152

Industrial demand for p-xylene has been increasing in recent years and the major production is by toluene disproportionation. This research studied the effect of crystal size and the modification by silica deposition on the surface of the zeolite. Sh... Read More about Selective Toluene Disproportionation to Produce Para-Xylene over Modified ZSM-5.

Formation of Copper Nanoparticles in LTL Nanosized Zeolite: Kinetics Study (2016)
Journal Article
Kharchenko, A., Zholobenko, V., Lebedev, O., de Waele, V., & Mintova, S. (2016). Formation of Copper Nanoparticles in LTL Nanosized Zeolite: Kinetics Study. Journal of Physical Chemistry C, 26300-26308. https://doi.org/10.1021/acs.jpcc.6b08045

The kinetics of formation of copper nanoparticles in LTL type nanosized zeolite (Cu0-LTL) was investigated. The water suspensions containing copper ion exchanged zeolite crystals (Cu2+-LTL) were treated with three reducing agents (hydrazine monohydra... Read More about Formation of Copper Nanoparticles in LTL Nanosized Zeolite: Kinetics Study.

On the enhancing effect of Ce in Pd-MOR catalysts for NOx CH4-SCR: a structure-reactivity study (2016)
Journal Article
Mendes, A., Zholobenko, V., Thibault-Starzyk, F., Da Costa, P., & Henriques, C. (2016). On the enhancing effect of Ce in Pd-MOR catalysts for NOx CH4-SCR: a structure-reactivity study. Journal of Catalysis, 121-131. https://doi.org/10.1016/j.apcatb.2016.05.004

The effect of palladium and cerium species on the selective catalytic reduction (SCR) of NOx using methane as reductant (NOx CH4-SCR) has been investigated using Pd-HMOR and PdCe-HMOR system. The catalysts have been characterised by H2-TPR, DRS UV–Vi... Read More about On the enhancing effect of Ce in Pd-MOR catalysts for NOx CH4-SCR: a structure-reactivity study.

The role of steric effects and acidity in direct synthesis of iso-paraffins from syngas on cobalt zeolite catalysts (2015)
Journal Article
Zholobenko. (2015). The role of steric effects and acidity in direct synthesis of iso-paraffins from syngas on cobalt zeolite catalysts. ChemCatChem, 380-389. https://doi.org/10.1002/cctc.201500777

This study focuses on the effects of the localization of Co species, zeolite structure, and acidity on the performance of Co bifunctional catalysts promoted with Pt for the direct synthesis of iso-paraffins from syngas. ZSM-5, MOR, and BEA were chose... Read More about The role of steric effects and acidity in direct synthesis of iso-paraffins from syngas on cobalt zeolite catalysts.

Effect of tapeworm parasitisation on cadmium toxicity in the bioindicator copepod, Cyclops strenuus (2013)
Journal Article
Khalil, M., Furness, D. N., Zholobenko, V., & Hoole, D. (2014). Effect of tapeworm parasitisation on cadmium toxicity in the bioindicator copepod, Cyclops strenuus. Ecological Indicators, 37 Part A, 21-26. https://doi.org/10.1016/j.ecolind.2013.09.033

The ubiquitous nature of crustaceans has meant that they have been considered as useful bioindicators of water quality. Although crustaceans e.g. Cyclops strenuus serve as intermediate hosts to many metazoan parasites, the effect of infection on toxi... Read More about Effect of tapeworm parasitisation on cadmium toxicity in the bioindicator copepod, Cyclops strenuus.